Press and blow machine for the production of containers

ABSTRACT

A press-and-blow container making machine wherein one of two rotary tables supports a set of blank molds receiving gobs from a gob feed and the other rotary table supports a set of blow molds serving to convert parisons obtained from the blank molds into finished containers. An endless flexible conveyor carries neck rings which transport parisons from the first table, past a preliminary treating unit and on to the blow molds. The preliminary unit partially blows the parisons while supporting them from below by way of tables. The neck rings also transport finished containers away from the blow molds.

United States Patent n91 Becker PRESS AND BLOW MACHINE FOR THE PRODUCTION OF CONTAINERS [75] Inventor: Kurt Becker, Obernkirchen,

Germany [73] Assignee: Hermann Heye, Obernkirchen,

Germany [22] Filed: Nov. 9, 1971 [21] Appl. No.: 197,075

Related Application Data [62] Division of Ser. No. 716,196, March 26, 1968,'Pat.

[30] Foreign Application Priority Data Apr. 1, 1967. Germany 62338 [52] US. Cl...., 65/241, 65/229, 65/240,

[51] Int. Cl. C03!) 9/00, C03b 11/05 [58] Field of Search 65/229, 231, 232, 237,

[56] References Cited UNITED STATES PATENTS 1,904,959 4/1933 Soubier ..65/242X Apr. 16, 1974 3,490,891 1/1970 Fouse 65/229 X 2,289,999 7/1942 Schulz 65/230 X 1,875,202 8/1932 Aftergut 65/233 X 2,874,516 2/1959 Youkers 65/232 2,327,673 8/1943 Shillinger 65/232 X 3,622,305 3/1968 Becker 65/241 X Primary Examiner-S. Leon Bashore Assistant Examiner-Kenneth M. Schor Attorney, Agent, or Firm-Michael S. Striker 5 7] ABSTRACT A press-and-blow container making machine wherein one of two rotary tables supports a set of blank molds receivinggobs from a gob feed and the other rotary table supports a set of blow molds serving to convert parisons obtained from the blank molds into finished containers. An endless flexible conveyor carries neck rings which transport parisons from the first table, past a preliminary treating unit and on to the blow molds. The preliminary unit partially blows the parisons while supporting them from below by way of tables. The neck rings also transport finished containers away from the blow molds.

11 Claims, 30 Drawing Figures PATENTEDAPR 161974 1180x8771 saw 01 or 21 'PATEMTEHAPR 16 19M 13,80,387.

saw cam 21 sum as ore- PATENTEHAPR 16 1914 I nww qm a 6 7i PATENTEUAFR 16 1974 SHEET "08 0F 21 PATENTEUAPRIBIQM $803,677

' sum is or 21 PATENIEDAPR 16 1914 1.5; 80387 T sum 18 or 21 It J n I III v I m *PMTENTEDAPRIGIQM 3 8 3 8 sum 1aur21 

1. In a press-and-blow machine, particularly for the production of bottles and like hollow articles from plasticizable material, a combination comprising a first assembly having pressing means operative to convert successively delivered batches of plasticized material into parisons; a second assembly having blowing means for converting parisons into finished hollow articles; conveyor means comprising transporting means for transporting parisons from said first to said second assembly; and at least one auxiliary assembly for subjecting parisons to an intermediate shaping treatment during travel of parisons with said conveyor means from said first to said second assembly, said auxiliary assembly comprising means for supporting from below the parisons transported by said conveyor means from said first to said second assembly, and means for admitting pressurized fluid into the thus supported parisons.
 2. A combination as defined in claim 1, wherein said auxiliary assembly comprises a turntable turnable about an axis and at least one blowing unit on said turntable, said blowing unit including a bottom member arranged to support from below parisons transported by said conveyor means and a blowing head arranged to admit pressurized fluid into parisons supported by said bottom member.
 3. A combination as defined in claim 2, wherein said auxiliary assembly comprises two blowing units mounted on said turntable diametrically opposite each other and movable radially with reference to the axis of said turntable, said transporting means of said conveyor means comprising neck rings movable past said auxiliary assembly at the speed at which said blowing units travel about the axis of said turntable so that the bottom member and blowing heads of said blowing units engage alternate parisons during travel of parisons with said neck rings past said auxiliary assembly.
 4. A combination as defined in claim 1, wherein said auxiliary assembly comprises a first driven endless flexible element provided with a pluralitY of bottom members arranged to support from below parisons transported by said conveyor means past said flexible element and a second driven endless flexible element provided with blowing heads arranged to admit a pressure medium into parisons supported by said bottom members.
 5. A combination as defined in claim 4, wherein said auxiliary assembly further comprises means for adjustably supporting said endless flexible elements, said elements being adjustable transversely of the direction of travel of parisons with said transporting means to accommodate parisons of different lengths.
 6. In a press-and-blow machine, particularly for the production of bottles and like hollow articles from plasticizable material, a combination comprising a first assembly having pressing means operative to convert successively delivered batches of plasticized material into parisons; a second assembly having blowing means for converting parisons into finished hollow articles; conveyor means comprising transporting means for transporting parisons from said first to said second assembly; and at least one auxiliary assembly for subjecting parisons to an intermediate shaping treatment during travel of parisons with said conveyor means from said first to said second assembly, said auxiliary assembly comprising means for supporting from below the parisons transported by said conveyor means from said first to said second assembly, and means for admitting pressurized fluid into the thus supported parisons, said auxiliary assembly supporting during said entire shaping treatment the parisons while the same are also supported by said neck rings mounted on said single endless flexible conveyor means.
 7. A combination as defined in claim 6, wherein said auxiliary assembly comprises a further turntable having an axis parallel to the axes of said first and second turntables and at least one blowing unit on said further turntable, said blowing unit including a bottom member arranged to support from below parisons transported by said conveyor means and a blowing head arranged to admit pressure fluid into parisons supported by said bottom member.
 8. A combination as defined in claim 7, wherein two blowing units are mounted diametrically opposite each other on said further turntable movable radially with reference to the axis of the latter, and wherein said neck rings are moved by said conveyor means past said auxiliary assembly at the speed at which said blowing unit travel about the axis of said further turntable so that the bottom members and blowing heads of said blowing units engage alternate parisons during travel of parisons with said neck rings past said auxiliary assembly.
 9. A combination as defined in claim 6, wherein said auxiliary assembly comprises a first driven endless flexible element provided with a plurality of bottom members arranged to support from below parisons transported by said conveyor means past said flexible element and a second driven endless flexible element provided with blowing heads arranged to admit a pressure medium into parisons supported by said bottom members.
 10. A combination as defined in claim 3, wherein said transporting means transports said parisons on said neck rings along a substantially straight line past said turntable, and including means mounting said blowing units on said turntable for movement in radial direction and means cooperating with said blowing unit for maintaining a respective one of said units in axial alignment with a neck ring as the latter travels past said turntable.
 11. A combination as defined in claim 8, wherein said transporting means transports said parisons on said neck rings along a substantially straight line past said further turntable, and including means mounting said blowing units on said further turntable for movement in radial direction and means cooperating with said blowing units for maintaining a respective one of said units in axial alignment with a neck ring as the latter travels past said further tUrntable. 